Industrial Grade Copper Polishing Liquid Cutting Fluid for Metal Surface Treatment Rust Oxide Removal Cleaning Restoration. Mirror Effect Restoration: Quickly removes oxide layers and stains to restore copper luster with a mirror finish. Mild and Non-Corrosive: Safe for red copper, brass, and bronze; protects surface integrity during cleaning. Eco-Friendly and Safe: Low odor, no harmful ingredients; harmless to humans and the environment. Multi-Application Versatility: Suitable for copper pipes, wires, ornaments, and crafts in household and industrial settings. Global Certification Compliance: SGS certified, EU REACH compliant, and holds ISO9001/14001/45001 management certifications. Flexible Customization Support: Supports OEM/ODM, custom packaging (drums/cans), and specific weight options (e.g., 25kg, 50kg). No Minimum Order Quantity: Supports sample testing, small batches, and bulk purchases without MOQ restrictions. Fast Delivery for Stock Items: Stock items delivered within 7-10 days; bulk production takes 30-60 days.